Code 4xxx/6/40000005

What does this code indicate in hardware test: 4xxx/6/40000005


MacBook Pro 13″, macOS 10.13

Posted on Sep 6, 2020 10:31 AM

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3 replies

Sep 6, 2020 10:41 AM in response to leroydouglas

Macbook Pro. The battery was replaced about a month ago by a person who said he knew how to replace batteries. Could he have used a battery that was not Apple “certified”? I ran the hardware test because my wife’s Macbook Pro would not play a DVD and that’s as far as I got. I really wanted to verify that the CD player was working. How do I do that?

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Code 4xxx/6/40000005

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